A DNA vaccine induces SARS coronavirus neutralization and protective immunity in mice.
A DNA vaccine induces SARS coronavirus neutralization and protective immunity in mice.
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DNA疫苗可诱导小鼠中和冠状病毒中和和保护性免疫。
DOI:
10.1038/nature02463
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发表时间:
2004-04-01
期刊:
影响因子:
64.8
通讯作者:
Nabel GJ
中科院分区:
文献类型:
--
作者:
Yang ZY;Kong WP;Huang Y;Roberts A;Murphy BR;Subbarao K;Nabel GJ
Public health measures have successfully identified and contained outbreaks of the severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV), but concerns remain over the possibility of future recurrences. Finding a vaccine for this virus therefore remains a high priority. Here, we show that a DNA vaccine encoding the spike (S) glycoprotein of the SARS-CoV induces T cell and neutralizing antibody responses, as well as protective immunity, in a mouse model. Alternative forms of S were analysed by DNA immunization. These expression vectors induced robust immune responses mediated by CD4 and CD8 cells, as well as significant antibody titres, measured by enzyme-linked immunosorbent assay. Moreover, antibody responses in mice vaccinated with an expression vector encoding a form of S that includes its transmembrane domain elicited neutralizing antibodies. Viral replication was reduced by more than six orders of magnitude in the lungs of mice vaccinated with these S plasmid DNA expression vectors, and protection was mediated by a humoral but not a T-cell-dependent immune mechanism. Gene-based vaccination for the SARS-CoV elicits effective immune responses that generate protective immunity in an animal model. The online version of this article (doi:10.1038/nature02463) contains supplementary material, which is available to authorized users.
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影响因子:
1.8
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通讯作者:
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